Compared to the standard Remington and Winchester loads (705 fps and 115 ft lbs) there is an increase of 75 fps and 15 ft lbs with the Federal round.
I am wondering if it's worth buying a few boxes? They are sold in 20 rd. packs that actually come out at the same cost or a little cheaper as half a box of 50 Remingtons or Winchesters. The increase in muzzle velocity is greater than the increase in ft lbs using the Federal round. I wish it were the other way around.
I like any increase in cartidge efficiency but I'm not convinced that the increases are enough to bother with buying some of this.
If I reloaded I could probably get a better performing 32 Long round without damaging the D frame, but that's not in the cards.
I also would not consider having the Colt DS converted to 32 mag! I definitely want to keep it as I received it. Colt didn't make a lot of DSs in 32 Colt NP. So it's kind of a scarce variation.
My thoughts are basically to keep this DS as an interesting early 50s Ds to shoot at the range ocassionally. I have no plans to use it for self defense or carry, but I am always considering alternatives.